Improvement in fire-escapes



@anni @fitte THOMAS L. SUMMERIL or June; Wisconsin- Letters Patent No.i12-,982, dated-'lliiarch 21, 1871.

IMPROVEMENT INv FIRE-ESCAPES.

The Schedule referred to these illletlzern Patent andmaking part of thesamp.

. To all whom 'it may concern 'Be it known that I, 'lfHoMAs L. SUMMERIL,oi'

Juda Post Oice, Green county, Wisconsin, have invented a new and usefulDevice for Elevating and Lowering diierent Materials, especially adaptedto rescuing persons frombuildngs on tire; and I do hereby declare thatthe followi g is a full, clear, and exact description of thev saine,itsconstruction and operation, reference being had to the annexeddrawing making a part of this specification, in which Figure l is aperspective view, showing the car or box in a position ready `to beelevated,

Figure 2 showing the same when elevated and ready to come down'.

Similar letters of reference indicate like parts in the drawing. Myinventionconsists in the apparatus and means used .to operate the armsor levers generally known as lazy-tongs, and also the means used topress forward the box or car to receive its load, as, for instance,aperson from a high window'of a burning building.

To enable others to understand and use my invention, I will describe thesame with reference tothe drawing.-

A represents the car or box lower the load;

B represents a frame, which is used tepress the box forward; O O arepulleys, over which the cords pass in elevating or lowering;

D is a ratchet and pawl, used `to lock the load at any desired height;

E represents a windlass, by whichA the rope H is tightened to press thecar forward; y

F F are the arms or lazy-tongs;

G G are the cords used to elevate the car;

E is the cord used to press forward the ca r;

I is a bale and leade ball used to balance the frame used to elevate orv J is a Windlass; and

K K cords.

The opera-tion is as follows:

The foundation having been iirst leveled up and the ropes G G and car-A' being placed'as shown in iig. 1, the operators will turn thewindlass J, which, bymeans of the cords K K, .will draw the arms F Finto the position 'shown by g. 2, and the car will bc elevated to thetop of the apparatus, when, by turning the Windlass E, the car can bepressed forward, so as to receive anything to be lowered orto unloadanything which has been elevated.

It will be noticed that there are ytwo sets of arms or lazy-tongs,rendering the machine firm and strong for elevating.'

-It will also be noticed that the car A travels the entire distance fromthe bottom to the top ot" thev machine, while the top ofthe machine iselevated but halfthe' distance, thus rendering it possible to elevate aload very quickly, and also to render speedy aid to suiierers inbuildings on iire.

The machine can, however, be used for elevating brick, mortar, stone,&c., on the walls ot' buildings, and for various other purposes. I donot claim the invention of the lazy-tongs --bnt `What I do claim, anddesire to secure by Letters Patent of th`e United States, is'- v'.lhecombination and arrangement of the car A,

frame B, pulleys G C, ratchets D D, windlass E, cords G, G, and H, baleI, windlass J, and cords K K, substantially as described.

In witness whereof I have subscribed my name this 18th day of October,1870.

.'l. L. SUMMERIL.

Witnesses:

E. L. WALKER, LEAH M.' WALKER.

